I have been feeding my crickets greens (dandelions, kale, collards, escarole, endive, mustard greens, etc.) and veggies (carrots, squash, sweet red pepper, sweet potato, celery leaves, zucchini, parsnips, etc.) for years. I know the greens and veggies grow healthy crickets because I have had a colony of them (crickets) growing in with a pair of prehensile tailed anoles for years and they were/are healthy and produce eggs. (BTW...since I can't dust the crickets that grow in the cage easily, I dust the greens and veggies instead. Also...the prehensile tailed anoles (at least this species) are omnivores and eat the greens and veggies too.)